SEPARATION OF ETHANOL-WATER MIXTURE BY PERVAPORATION THROUGH DIACETONE ACRYLAMIDE COPOLYMERS

Chinese Journal of Applied Chemistry ›› 1992, Vol. 0 ›› Issue (2): 102-105.

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SEPARATION OF ETHANOL-WATER MIXTURE BY PERVAPORATION THROUGH DIACETONE ACRYLAMIDE COPOLYMERS

Zhang Keda, Liu Yan, Zhang Lilu

Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022

Received:1991-01-18 Revised:1991-06-01 Published:1992-04-10 Online:1992-04-10

Abstract

Abstract: Copolymersd of diacetone acrylamide (DAAM)-styrene (St) and DAAM-methylmethacrylate (MMA)were used as pervaporation membrane materials for ethanol-water mixture separation.The results showed that a better permselectivity for water was obtained when the content of St or MMA in copolymers was high. And with increase of DAAM content in copolymer the permeation rate increased significantly.The pervaporation behavior is explained in terms of preferential sorption of water in copolymer membranes. Sorption plays an important role in all pervaporation process.

Key words: pervaporation, copolymer, diacetone acrylamide, methylmethacrylate, styrene, ethanol separation

Zhang Keda, Liu Yan, Zhang Lilu. SEPARATION OF ETHANOL-WATER MIXTURE BY PERVAPORATION THROUGH DIACETONE ACRYLAMIDE COPOLYMERS[J]. Chinese Journal of Applied Chemistry, 1992, 0(2): 102-105.

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SEPARATION OF ETHANOL-WATER MIXTURE BY PERVAPORATION THROUGH DIACETONE ACRYLAMIDE COPOLYMERS

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